From the course: Learning Grasshopper

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How to use image sampling to control transformations in Grasshopper

How to use image sampling to control transformations in Grasshopper

From the course: Learning Grasshopper

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How to use image sampling to control transformations in Grasshopper

- In this video, we'll take a look at image sampling which is the technique that allows us to take pixel data stored in an image file and convert that data into numbers which can then be used to control transformations. In our example, we'll look at using image sampling to control the scale of this large group of spheres. Quick tour of our example file. We're starting off with a surface parameter. I've already internalized a surface from rhino, if i right click here and turn the preview on we can see it there. I've also made sure to right-click and reparameterize the surface. This sets the local domains of the surface the U and V domains to ranges of zero to one. And that reparameterization will make it more predictable as we map our image onto the grid formed by that plane. So I'll go ahead and right click and turn preview back off here. So feeding that surface into a divide surface component which gives us points along…

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